The invention provides a load driver circuit including at least one FET such as MOSFET QX, QY, and QZ, controlled by a control circuit providing gate control voltage to the load driving FET by means of a feedback loop connecting the FET and the control circuit, without utilizing any resistor connected...http://www.google.com/patents/US6377109?utm_source=gb-gplus-sharePatent US6377109 - Load driver circuit
